Hey, I have posted issue here I don’t know where we’ll have more comfortable conversation.
I’m working on Linux Alpine system into Docker container. We are using Aspose.PDF 19.12
And trying to make a popup over text fragment (hovering of mouse should trigger to display it). Also
one of requirements is correct work in Goggle Chrome. We found that is the only way to get a solution.
` var field = new TextBoxField(page, rect);
field.PartialName = "richField_" + Guid.NewGuid();
field.Characteristics.Border = Color.FromArgb(100, 104, 82);
field.Characteristics.Background = Color.FromArgb(255, 255, 226);
field.Border = new Border(field)
{
Style = BorderStyle.Solid
};
field.Flags |= AnnotationFlags.Hidden;
field.Multiline = true;
field.DefaultAppearance = new DefaultAppearance(Arial.FontName, 14, Color.Black);
field.Value = "some text here";
field.ReadOnly = true;`
Some documents throws NullReferenceException when I trying to edit them on line field.Value = "some text here";.
This is stack trace:
System.NullReferenceException: Object reference not set to an instance of an object.
at #=zDwGbcB4GP$EtqQOcoR5PHQgAvB5rx0Ym5iSnCDo7WVe2.#=zgkm65jc=(#=zu24DCOrH$PlhJSXxRTH0iOE= #=zTwpRwts=, Boolean #=zt9wEeYbqIXr_, Boolean #=zGsWDMXA=, Boolean #=zgPLU00Q=)
at #=zDwGbcB4GP$EtqQOcoR5PHQgAvB5rx0Ym5iSnCDo7WVe2.#=zGTnAb3Y9PFUslG1aXw==(#=zQ1QRfnYGY_Cf6TD93PUWH$jxnz8y1t0CDMeG_q0= #=zu1HvU98=, #=zu24DCOrH$PlhJSXxRTH0iOE= #=zTwpRwts=, Boolean #=zgPLU00Q=, String& #=zGba0mfQ=)
at #=z6FZ0vcBBFfvzvhyPkNKS0DqC$XUWu4G4lxQdd3j0j4jYXAb4D$82BkE=.#=zoa1p39JZSdZI(String #=z7ppX2lY=, #=zQ1QRfnYGY_Cf6TD93PUWH$jxnz8y1t0CDMeG_q0= #=zu1HvU98=, #=zVAG$DdjlHTykOyjIWR019U8hU$Vju69fsA==& #=zlcc2Fm8=, #=zXXJGE6zwmDAguaHaPQVRo9KbuV7h6HXauJIoqXHGHZwm& #=zi2$EDyAUqVcB, String& #=zUfq9SVUIVubm)
at Aspose.Pdf.Forms.TextBoxField.#=zwy2DxGsDrKE3(#=zE8BHI3k3B4g8 #=zj0KBaOc=, Annotation #=z8PqDbq0=)
at Aspose.Pdf.Annotations.WidgetAnnotation.#=zIGPt4H4=(Annotation #=z8PqDbq0=)
at Aspose.Pdf.Forms.Field.#=zx5fFGUg=(String #=z4MuNd_4=)
at Aspose.Pdf.Forms.Field.set_Value(String value)
at Aspose.Pdf.Forms.TextBoxField.set_Value(String value)
at PdfEnriching.Services.Implementation.TextBoxFieldToolTipBuilder.SetUp(TextBoxField field, String value) in /builds/agent1/37/s/src/PdfEnriching/Services/Implementation/TextBoxFieldToolTipBuilder.cs:line 69
at PdfEnriching.Services.Implementation.TextBoxFieldToolTipBuilder.Build(PageInfo pageInfo, Page page, Rectangle rectangle, Link link, Boolean mostRecent) in /builds/agent1/37/s/src/PdfEnriching/Services/Implementation/TextBoxFieldToolTipBuilder.cs:line 50
at PdfEnriching.Services.Implementation.PdfEnrichingService.AddTooltip(Link link, Boolean mostRecent, ButtonField button, TextFragment fragment, Document document) in /builds/agent1/37/s/src/PdfEnriching/Services/Implementation/PdfEnrichingService.cs:line 398
at PdfEnriching.Services.Implementation.PdfEnrichingService.EnrichPdfDocument(IEnrichingContext context, IEnumerable`1 links, Document document, CancellationToken cancellationToken) in /builds/agent1/37/s/src/PdfEnriching/Services/Implementation/PdfEnrichingService.cs:line 346
at PdfEnriching.Services.Implementation.PdfEnrichingService.Enrich(IEnrichingContext context, LookupResult[] lookupResults, CancellationToken cancellationToken) in /builds/agent1/37/s/src/PdfEnriching/Services/Implementation/PdfEnrichingService.cs:line 197
at PdfEnriching.Services.Implementation.PdfEnrichingService.DoWorkAsync(QueueInfo queueInfo, CancellationToken cancellationToken) in /builds/agent1/37/s/src/PdfEnriching/Services/Implementation/PdfEnrichingService.cs:line 83
at IHS.Services.DocumentProcessing.Ticker.DocumentProcessingTicker.DoWorkAsync(CancellationToken cancellationToken)
this is Dockerfile I have
FROM mcr.microsoft.com/dotnet/core/aspnet:2.2
RUN apt-get update \
&& apt-get install -y --no-install-recommends libgdiplus libc6-dev libx11-dev libfontconfig1 fontconfig \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists /var/cache/apt/archives
# Copy fonts into system
COPY fonts/ /usr/share/fonts/truetype/msttcorefonts
# Refresh cache and rescan folders
RUN fc-cache -f -v
What is the root cause of the error? It seems like something with fonts. But I cannot understand because all code is obfuscated.